Disgraced ex-con and Democratic former Illinois Gov. Rod Blagojevich on Sunday urged voters to cast ballots for Republicans, griping that socialists such as Zohran Mamdani have “hijacked’’ the Dem Party. Blagojevich — who was convicted of selling to the highest bidder the Senate seat that Barack Obama vacated after his 2008 presidential election — seethed to the “Cats Roundtable” radio program, “It’s not the Democratic Party anymore. “It’s a socialist party,” said the ex-gov, now a self-described “Trump-O-Crat,” while discussing his new book, “Framed, F*cked, and Freed: A Governor’s Odyssey” on the 770 WABC program. “The Democratic Party has been...